// <type> ::= U "__strong"
// <type> ::= U "__weak"
// <type> ::= U "__autoreleasing"
- // <type> ::= U "__unsafe_unretained"
case Qualifiers::OCL_None:
break;
break;
case Qualifiers::OCL_ExplicitNone:
- LifetimeName = "__unsafe_unretained";
+ // The __unsafe_unretained qualifier is *not* mangled, so that
+ // __unsafe_unretained types in ARC produce the same manglings as the
+ // equivalent (but, naturally, unqualified) types in non-ARC, providing
+ // better ABI compatibility.
+ //
+ // It's safe to do this because unqualified 'id' won't show up
+ // in any type signatures that need to be mangled.
break;
}
if (!LifetimeName.empty())
void f(__weak id *) {}
// CHECK: define void @_Z1fPU15__autoreleasingP11objc_object(i8**)
void f(__autoreleasing id *) {}
-// CHECK: define void @_Z1fPU19__unsafe_unretainedP11objc_object(i8**)
+// CHECK: define void @_Z1fPP11objc_object(i8**)
void f(__unsafe_unretained id *) {}
// CHECK: define void @_Z1fPKU8__strongP11objc_object(i8**)
void f(const __strong id *) {}
void f(const __weak id *) {}
// CHECK: define void @_Z1fPKU15__autoreleasingP11objc_object(i8**)
void f(const __autoreleasing id *) {}
-// CHECK: define void @_Z1fPKU19__unsafe_unretainedP11objc_object(i8**)
+// CHECK: define void @_Z1fPKP11objc_object(i8**)
void f(const __unsafe_unretained id *) {}